科研之友
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摘要
We have examined anode materials with anions as an ion transport species to solve metal deposition in rechargeable batteries intrinsically. Mg deposition-dissolution tests were conducted using some ionic liquid electrolytes at 60 degrees C, and a new electrochemical reaction was observed in addition to Mg deposition and dissolution in an electrolyte of Mg(CF3SO3)(2) and N-methyl-N-propylpiperidinium bis(trifluoromethane sulfonyl)amide. The reaction was determined to be based on the formation and release of a polymeric network of triflate ions (CF3SO3-) on the Mg metal surface, which suggests a novel anode material with anion carriers. An anion battery is also demonstrated using this phenomenon and incorporating an acrylate polymer with 2,2,6,6-tetramethylpiperidine-oxyl side units in the cathode to provide evidence of the rechargeability by the intermediary anion carrier.
- 出版日期2015-2-19
